I've had this for about 18 months now and every 5 minutes the monitor goes black and the LED light at the base turns off. The power and display are restores after about 5 minutes however it is a constant problem. I have tried different power cords and both DVI and VGA ports on the Graphics card but neither of these fixed it.
I am running Windows 7 64bit with the latest version of my display driver installed.
Any help is appreciated
Disconnect all cabling from the monitor except the power. Does it still turn off?
Since the 24" and smaller monitors do not have a Dell Service Tag number, you will need to contact Dell Australia Order Support team (1800-812-393) to get the monitor replaced. They will need the following data:
Dell Monitor Order number:
Dell Monitor 20 digit PPID number:
Reason: ST2420L powers off, fails STFC